Vacuum reducing-valve.



W. P. BURKE.

VACUUM REDUCING VALVE.

APPLICATION FILED MAY23. 1913.

1,132,731 I Patent ed Nov. 30, 1915.

WITNESSES: I INVENTOR.

ymgycm [ZilliamRBurfiQ ErV d I 444 ATTORNEYS,

" wimium r. sun-1m, or srmnermrn,

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I :a citizen sure water 'service where lower the pressure through the plpes of a or regulators that, valves are open on upper floors.

phragm whichv shows a pipe invented new and means to automatically open and inlet valvein proportion with the quantity of water that is required. It is a well known invention is v UNTIED omnunnann'rns STATES; PATENT I ME A S SACHUSETTS, ASSIGNOB .0! TWENTY-FOUR orr cn.

OF SPRINGFIELD, MASSACHUSETTS.

V vacuum surname-verve.

- To all whom/it may concern:

.Be it known that 1, WILLIAM P. Beans,

0f the United States of America, resig n at Springfield, in the county of p V useful Improvements in Vacuum Reducing-Valves,of which the I fo1= to improvements in is particularly de it s desired before it is distributed .a dwelling or other building). An 0 j close the fact that in some-pressure reducing valves when several faucets or the upper floors of apartment or otherbuilding and if the fancets or valves on the lower oors are open at the same time, the water will not flow on the I to the house,iand, normally, the valve 0 will One of the features of this to overcome this objection. Broadly,-the invention consists of a diadevice for controlling the movements of the inlet valve by permitting the water at its reduced pressure to act on the opposite side in communication with the house-pipe. valve is also provided for shutting ofi this communication hereby the diaphragm may be renewed without shutting-off the flow of water to the building.

Referring to the drawing, the figure of fromflthe' source of supply to ipes, the lower'end of which is connected I with the city water pressure through a suitthe house-pipe and considered one containing reduced pressure of water able globe valve construction, the'valve of which is controlled by a' diaphragm. The upper side of this diaphragm receives the from the houseipe. A suitable valve is interposed between the opposite side of the 'tted diaphragm whereby the pressure admi to the house-pipes is controlled.

Referring to the drawing in detail, a

designates a pipe which is connected to the pipes throughout the building which may be se eral floors.-

' Specification of Letters Ifatent. 1 Application filed ma as, 191:. serial No. 769,395.

en and State otMassachusetts, have ect of the invention is to provide of the diaphragm which s p that conveys the water the house- PatentedNovi so,- 1915.

The lower end of this pipe is comiected' .to a

globe valve construction, indicated-at b,-the valveproper being shown at 0.

d designates the connection pipe 0. and the valve b;

between the d is the valve stem on the upper' end of which is placed the plate 6 which bears directly against the underside of the diaphragm f that is suitably clamped between the two plates 9 and b I The upper plate is formed with an opening-therein to receive a connection 6 that communicates with a second globe valve j,'the valve proper being shown at k that is'operated by means of the hand-wheel m. Extending between the valve and'the house-pipe a is the connection o that communicates with the house pipe a by means of the small opening p.

designates a projection that nearly closes the communication from the pipe a to the connection 0. except for the small bpening p. v

The area of the disk e and the valve c must bear a, definite relation to. each other in order topermit a definite pressure to flow only'open a sligh distance to allow the defihouse-pipe a as, for example, 40 pounds when the valvesor faucets on the lower floors are open. If it is desired to allow a greater ressnre and volume of water to flow through the'pipe a, it is evident that the diameter of the disk (2 should be made smaller 'or nearer the size of the valve 0, it being understood that the reduced water pressure i 1. the space '1' above the diaphragm f is equal tothat in the house-pipe a. Should several valves or faucets be open at the .same time on the upper and lower floors, it is evident that the pressure on the upper floorswould be very much reduced or possibly no water would flow at all unless some means"'w'e're provided to open the valve e a greater distancein order to prov1de for this increased volume of water that is required. In order to meet this requirement, the diaphragm 7" must move upward to permit the valve 0 to open this greater distance. ('omplishcd by reason of the larger volume of water thriving through the pipe (7. when a la rgenmnher of t eet... are opem 'which increased volume or. water will cause a partial This result is automatically acvacuum to be produced in the chamber r very above, the diaphragm f. The partialtvacuum in the chamber"? is caused by reason of the water in the pipe ,'a, as it flows past the small opening p that communicates with the chamber 1', the valve 5], and the pipe 0. At

the ,same time that thepressure is reduced in the chamber 1-, the incoming water through the pipe 3, which is connected to the high pressure city main, will lift the valve 0 a sufficient distance to permit a greater volume ofwater to flow through the pipe a whereby all -ofthe floorsof a build ing may be supplied at the same time.

If it is necessary to change or to put in a new diaphragm indicated at f, it is only necessary to close the valve is by means of the hand-wheel m thus shuttingoif the water from the-chamber 1-. Then, by removing the bolts 23, a new diaphragm canbe readily inserted. When this operation takes place, the

' water -flows through the house-pipe a at the normal city pressure without any reduction. 7

i It will be seen from this invention that two important results are accomplished first,-th at the valve works automatically to supply-water on several floors of a building simultaneously, and, second, that the diaphragmcrreducing mechanismmay be repaired withoutshutting off the flow of water to the building. The construction shown'at above the diaphragm,

' p and g-in the Tmember u may be termed a vacuum T- construction, since the water flowing through the pipe it produces vacuum in the space 1-. An important feature of the present invention is the extension piece 9 pressure is transmitted to the chamber 7-,:

ut,-when a large volume flows through the opening 72 at the upper aving. the small When water is side of the connection 0. flowing through the pipe a,

reduced pressure, say 40 pounds, the same duced by the suction effect caused by the water, flowing past the opening and not through, thesame into the chamber 1'. It will be seen therefore that'the opening ;0 is

copies ofthis patent may be obtained-for Land a partition in the T-coupling having relatively small opening in the upper side at its normallyw ejector pipe will not reach the level of the opening and thereby effect the passage of pipe a, thepressurein the chamber 1" is remuch less in area than. the connection lll hat I claim is 1,. In a pressure reducing .device,, the combination with a main, a service pipe, faucets served by the service pipe, and a pressure reducing; valve controlling communication between the main and service pipe, compris-' aside, affording communication between the service pipe and the upper, side of the casing said valve which controls the flow of water from the main to the service pipe being closed when all of the faucets are closed and opened proportionately" according to the numberof faucets ,which are opened, upon thestep by step movement of the diaphragm, asvtheisaid,faiicetsfjare opened and closed. j"'

2. In an apparatus ,oftliefcharacterdescribed, a main and a service pipe including supply faucets, a valve'controlling the com munication between''the main and service pipe, and 'means for actuating the valve including an ejector pipe, a T-coupling connecting .the ejector pipe'and service pipe,

thereof, whereby water seeping within said air through said opening. WILLIAM P. BURKE.

' Witnesses:

HARRY W. BOWEN, HENRY A. Boom.

flve cents each, by addressing the Commissioner of Patents, Washington, D. 0." 1 

